[Lazy_Perfectionist]

I wasn't talking about non-aggression pacts, per se. I wasn't interested in treaties, since the one we have covers our border sufficiently as a simple division of territorial lines, but rather was wondering if there was some trade or action that would be mutually beneficial, and thus encourage peace as a simple matter of action.

Ulm, for instance, is getting a beneficial exchange rate of gems. There's a benefit to maintaining peace with me, for him, above and beyond the benefits of simply not being at war.

I'm looking for a way to increase the Value of peace. Not as a means to purchase a treaty, but to actually include a factor that makes it in your own best interest to maintain positive relations.